Angiosarcomas of the head and neck region.
D000368:Aged; D006257:Head; D006258:Head and Neck Neoplasms; D006394:Hemangiosarcoma / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D006801:Humans; D008113:Liver Neoplasms; D008175:Lung Neoplasms; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D012535:Scalp; D012878:Skin Neoplasms / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology / Q000601:surgery